isalnum (3C++std) - Tru64 UNIX
Standard C++ LibraryCopyright 1996, Rogue Wave Software, Inc. NAME
isalnum - Determines if a character is alphabetic or numeric.
SYNOPSIS
#include <locale>
template <class charT>
bool isalnum (charT c, const locale& loc) const;
DESCRIPTION
The isalnum function returns true if the character passed as a parameter is
either part of the alphabet specified by the locale parameter or a decimal
digit, otherwise the function returns false. The check is made using the
ctype facet from the locale parameter.
EXAMPLE
//
// isalnum.cpp
//
#include <iostream>
int main ()
{
using namespace std;
locale loc;
cout << isalnum('a',loc) << endl;
cout << isalnum(',',loc) << endl;
return 0;
}
SEE ALSO
other is_ functions, locale, ctype
STANDARDS CONFORMANCE
ANSI X3J16/ISO WG21 Joint C++ Committee
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